吸附法去除废水中的氨氮.docVIP

茂名学院本科毕业(设计)论文：吸附法去除废水中氨氮 摘要 PAGE 24 PAGE I 目录 吸附法去除废水中的氨氮 摘 要 本文通过静态吸附试验研究了吸附法去除废水中的氨氮，筛选出了适合的吸附剂，及其最佳吸附条件和最佳改性条件，以及计算再生损耗量。结果表明，沸石对氨氮的吸附量明显大于活性碳和腐殖酸；在常温下最佳吸附条件是废水pH值为10~12；最佳改性条件是温度为60℃，2mol/L NaOH浸泡改性8h，用无氨水反复冲洗，105℃烘干2h；选择10%NaCl溶液，与浓度为0.4mol/L的NaOH溶液等体积混合为再生剂，浸泡4h再生， 关键字：氨氮 吸附 沸石 改性 再生 Abstract The removal of wastewater containing ammonia by adsorption under static condition is researched in the paper. A suitable adsorbent, its best adsorption and capacity altering conditions are scalped, and test the regeneration ability of the adsorption. The result indicates, the capacity of zeolite for removal ammonia is much better than active C or humus acid; The best condition of adsorption is under room temperature and the pH is between 10 and 12 of the wastewater; The best condition of capacity altering is under 10℃, dipped in 2mol/L NaOH for 8h, washed by no ammonia water, hot under 105℃ 2h; 10% NaCl and 0.4mol/L NaOH confuse by the same volume to be the regeneration liquid, dipped for 4h to regenerate, hot in 105℃ for spare, after the test, the regenerated zeolite Key words: ammonia adsorption zeolite capability altering regeneration 目 录 TOC \h \z \t 1,1,2,2,3,3 HYPERLINK \l _Toc168902088 摘 要 PAGEREF _Toc168902088 \h I HYPERLINK \l _Toc168902089 Abstract PAGEREF _Toc168902089 \h II HYPERLINK \l _Toc168902091 第一章 绪 论 PAGEREF _Toc168902091 \h 1 HYPERLINK \l _Toc168902092 1.1氨氮废水来源 PAGEREF _Toc168902092 \h 1 HYPERLINK \l _Toc168902093 1.2氨氮废水的危害 PAGEREF _Toc168902093 \h 1 HYPERLINK \l _Toc168902094 1.3氨氮废水的处理方法 PAGEREF _Toc168902094 \h 2 HYPERLINK \l _Toc168902095 1.3.1生物法 PAGEREF _Toc168902095 \h 2 HYPERLINK \l _Toc168902096 1.3.2物理化学法 PAGEREF _Toc168902096 \h 3 HYPERLINK \l _Toc168902097 1.3.3组合方法 PAGEREF _Toc168902097 \h 5 HYPERLINK \l _Toc168902098 1.3.4吸附法的概述 PAGEREF _Toc168902098 \h 5 HYPERLINK \l _Toc168902099 1.4国内外氨氮废水处理现状 PAGEREF _Toc168902099 \h 8 HYPERLINK \l _Toc168902100 1.4.1国外研究现状 PAGEREF _Toc168902100 \h 8 HYPE